Billy and his younger brother, Reggie, are going to race each other to the park. They will start running at the same time, but Billy is letting Reggie start 20 meters ahead. Billy can run 8 meters per second, and Reggie can run 6 meters per second.
Which equation can you use to find s, the number of seconds it will take for Billy to catch up to Reggie if they each run as fast as they can?
A.
20s + 6 = 8s
B.
20 + 6s = 8s
A. 20s + 6 = 8s
Solve: 9 + 4y > 1
A.
5
B.
2
C.
-2
D.
-5
The correct answer is:
y> -2
So the correct answer choice would be C. -2
Solve: 8 + 5m ≥ –2
A.
6/5
B.
-6/5
C.
2
D.
-2
To solve the inequality 8 + 5m ≥ -2, we need to isolate the variable m.
8 + 5m ≥ -2
Subtract 8 from both sides:
5m ≥ -10
Divide by 5:
m ≥ -2
Therefore, the solution is m ≥ -2.
So, the correct answer choice is D. -2.
Solve - 4r > 16
A.
r < - 4
B.
r > -4
To solve the inequality -4r > 16, we need to divide by -4. When multiplying or dividing by a negative number, we need to reverse the inequality sign.
-4r > 16
r < -4
The correct answer is:
A. r < -4